sarj-sql-lint

Custom SQL lint rules for Postgres migrations. AST-based via sqlfluff for the SARJ101 rule + zero-dependency pygrep regex hooks for migration-hygiene checks. Designed for pre-commit.

uv tool install sarj-sql-lint

Rules

Code	id	Flags
SARJ101	`enforce-timestamptz`	`TIMESTAMP` without `WITH TIME ZONE` — use `TIMESTAMPTZ`
SARJ102	`idempotent-ddl`	`CREATE TABLE/INDEX/EXTENSION/SCHEMA/SEQUENCE/TYPE`, `ADD COLUMN`, `DROP TABLE/INDEX` without `IF [NOT] EXISTS`
SARJ103	`no-pg-enum`	`CREATE TYPE ... AS ENUM` / `ALTER TYPE ... ADD VALUE` — use TEXT + CHECK constraint
SARJ104	`prefer-text-over-varchar`	`VARCHAR(n)` / `CHARACTER VARYING(n)` — use TEXT (+ CHECK length if needed)
SARJ105	`insert-requires-on-conflict`	`INSERT INTO` statement (multi-line aware) with no `ON CONFLICT` clause
SARJ106	`prefer-jsonb`	`JSON` column type or `::json` cast — use JSONB
SARJ107	`no-limit-offset`	`OFFSET` keyword — use cursor pagination (`WHERE id > :cursor ... LIMIT n`)
SARJ108	`index-concurrently`	`CREATE INDEX` without `CONCURRENTLY` — locks the table against writes
SARJ109	`prefer-uuidv7-default`	`gen_random_uuid()` (random UUIDv4) — use `uuidv7()` so keys are time-ordered

All scanning runs over a comment/string/dollar-quote-masked view of the source, so keywords inside --//* */ comments, '...' literals, $tag$...$tag$ bodies and "..." identifiers never match.

Suppression

Add a -- sarj-noqa comment on the offending line to silence a diagnostic; scope it to specific codes with -- sarj-noqa: SARJ101, SARJ108.

Pre-commit

- repo: https://github.com/sarj-ai/standards
  rev: sql-v0.1.0
  hooks:
    - id: sarj-enforce-timestamptz
      files: '\.sql$'
    - id: sarj-idempotent-ddl
      files: '\.sql$'
    - id: sarj-ban-postgres-enums
      files: '\.sql$'
    - id: sarj-ban-create-trigger
      files: '\.sql$'
    - id: sarj-prefer-text-over-varchar
      files: '\.sql$'
    - id: sarj-insert-requires-on-conflict
      files: '\.sql$'
    - id: sarj-prefer-jsonb
      files: '\.sql$'
    - id: sarj-no-limit-offset
      files: '\.sql$'
    - id: sarj-prefer-uuidv7-default
      files: '\.sql$'

CLI

sarj-sql-lint check --rule enforce-timestamptz svcs/db/db/migrations/*.sql
sarj-sql-lint list-rules

Diagnostic format is path:line:col: CODE message — Ruff-compatible.

Each rule's source under src/sarj_sql_lint/rules/ carries its own description and diagnostic message.

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